Vertically adjustable therapy treatment table having hinged end sections



E. TERRY El AL VERTICALLY ADJUSTABLE THERAPY TREATMENT' April 13, 1954 l2,675,285

TABLE HAVING HINGED END SECTIONS 3 Sheets-Sheet l Filed 00t- 14, 1952 INVENTOR. [e I Sg@ .s

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VERTICALLY ADJUSTABLE THERAPY TREATMENT TABLE HAVING HINGED END SECTIONS Filed oct. 14, 1952 s sheets-sheet s 3 Patented Apr. 13, 1954 OFFICE VERTICALILY ADJUSTABLE THERAPY TREATMENT TABLE HAVING HINGED END SECTIONS Eselles'leverry and Henry E. Nordman, Ann Arbor, Mich.

limitation occobe 14, 1952, sel-MIN. 314,692

l This invention relates to collapsible tables or tables having adjustable or folding legs, and 1in particular an operating table having hinged sections at the ends and folding legs `with thelegs Iconneoted to and actuated by. sleeves slidably mounted on a threaded rod extended' longitudi; nally through a supporting frame of the table top and rotated by a crank on one end thereof.

The purpose of this invention is to provide means for readily adjusting the elevation of a table from one end thereof. u 1

Various methods have fbeen used for adjustably connecting table legs to table tops and other means have been provided for actuating the legs for changing or adjusting the'` elevation ofthe table top, however, with the conventional type of table it is necessary toI adjust the parts from several points and for certain operations or treatments it is desirable to actuate the adjusting means of a table from one end.` With this thought in mind this invention contemplates a table top mounted on a framel with legs of the table arranged in transversely disposed frames and with the frames of the legs pivotally connected to the frame of the tabletop'with braces and adjustably connected to the table top with sleeves on a threaded shaft with nuts at the ends of the sleeves and' with the shaft rotated by a crank on one end. y Y

y The object of this invention is, therefore; to provide means for mounting legson a table top whereby the legs are adapted to bespread to raise the table top and drawn together to lower the table top. l a

Another object of the invention is to,` provide a table top having legs adjustably connected thereto and also having hinge sections atV the ends with ratchets for retaining the hinge sections in upwardly extended positions.

With these and other ohje'ctsand advantages in view the invention embodies a horizontally disposed rectangular shaped-,frame supported by legs connected with cross bracing with the legs connected .fby braces Ato points. spaced from the ends of the frame, with the `upper endsof the legs slidably mounted in longitudinally positioned slots in the frame and connected to sleeves on a threaded shaft with the sleeves adjusted by nuts and with `the shaft `rotated by a crank `at one end whereby a table top having padding thereon positioned on the frame .is readily elevated or lowered.

Other features and advantages of the invention will appear from the following description taken in connection with the drawings, wherein:

1 claim'. (c1. 311-1) Figure' 1 is a longitudinal section through' the adjustable treatment table with parts 'broken away and with the legs of the table supported on casters spaced from the lower ends thereof.

Figure 2 is a longitudinally disposed section similar to that shown in Fig. 1 showing hinged endsV of the table top extended upwardly and showing theA table top elevated in relation to the table shown in Fig. I, wherein the casters are elevated above the ground and the ends of the ta'ble legs are supported by shoes providing frictional engagement with a floor or the like.

Figure 3 is a longitudinal section through the supporting frame taken on line 3 3 of" Fig; 1, looking upwardly and with some of the parts shown in section and some in elevation.

Figure 4 is a cross section through the table taken on line 4--4 of Fig. 1 and with the lower parts of the legs broken away.

Figure 5 is a longitudinal section taken on line 5- ,5 of Fig. 4 illustrating the connections of the upper ends of the legs and braces thereof to the frame of the table top and with other parts omitted, the parts being shown on an enlarged scale.

Figure 6 is a cross section through the table top taken on line 6--6 of Fig; 1.

e Figure '7 is a detail showing a section through one end of the table top illustrating one of the ratchets for retaining the hinged end sections of the table top in upwardly extended positions.

Figure 8 is a detail showinga section through a collarslidably mountedv on the end of the shaft and positioned to retain the c rank for rotating the shaft in outwardly extended position.

`Figuregil is a section similar to that shown in Fig. 8 showing the collar drawn outwardly to per- Init `the crank to drop. I

Figure 1 0` is a section taken on line I0--4l0 of Fig.` 9 showing the hinge connection of the crank to the shaft. l y

.Figure il is a detaiLsimilar to that shown in Fig..8 showing the crank` in a downwardly disposed position. a

Figure 12 is a detail taken on line |2l2 of Fig. 2 illustrating one ofthe shoes at the lower ends of the legs. a

Referring now to the drawings wherein like reference characters denote corresponding parts the improved adjustable treatment table of this invention includes a panel i0 providing a table top with hinged end sections i I and I2 and with a pad I3 on the upper surface, a mounting frame having spaced side rails I4 and i5 at one side and I6 and I1 at the opposite side and end rails I8 and I9, a centrally positioned longitudinally disposed shaft 29 having a crank 2l on one end and supporting legs 22 and 23 at one end and 24 and 25 at the opposite end. Y

The end sections i I and I2 are secured to ends of the panel I9 with hinges 26 and 21 and, as illustrated in Fig. 7, the end sections are provided with loops 28 pivotally mounted by bearings 29 on the under surfaces of the end sections and positioned to engage teeth of ratchet bars 39. The loops 28 are provided with counter weights 3lA which are supported on the ends of arms 32 whereby the lower sections of the loops are urged into engagement with the teeth of the Vratchet bars.

As illustrated in Fig. 1 the ratchet bars at one end of the table are mounted on the end rail IB and at the opposite end of the table the ratchet bars are mounted on a cross rail 33 which is spaced from the end. rail I9. As illustrated in Fig. 3, the upper ends 34 and 35 of the legs 22 and 23 are pivctally mounted on a rod 36, positioned in a sleeve 3l that is secured to a sleeve 38 which is slidably mounted on theV shaft 26. The ends of the rod 36 extend through slots 39 and 49 inthe intermediate side rails I5 and l?, respectively of the table frame. The ends of the rod-36 are provided with heads 4l and 42 for retaining the rod in position. The sleeve 31 is also provided with braces :i3 and llibywhich the sleeve 3 1 is supported from a nut 35 threaded on the shaft 29.

The upper ends 46 and 41' of the legs 24 and 25 are mounted on a rod 48 having heads 49 and 5i) lon the ends and the rod is positioned in a sleeve the leg with a pin 6I and pivotally attached, at4

the upper end to one of the side rails of the table frame with a pin 52. l

Each leg is also provided with a caster 63 having a roller 54 therein and mounted on the leg with a clamp 65.

Each leg is also provided with a shoe 66 having upwardly extended ears 51 and 66 with which the shoe is pivotally connected to the lower end of the leg with a pin 69.V The shoes areprovided with a rictional gripping pad 'i9 whereby with the table elevated, as illustrated in Fig. 2 the table is irictionally secured to a floor or the like.

The shaft 29 is journaled in the end rails i8 and i9 of the frame of the table with collars 'Il and 'l2 on opposite sides of the rails and extended ends '13 of the shaft are pivotally connected by a pin 14. The crank 2i is held in an outwardly extended position by a sleeve 15 which is slidably mounted over the shank of the crank and which is resiliently held in the position of holding the crank extended, as shown in Fig. 8 by a spring J6 positioned between a pin 17 and the end of the sleeve.

lil

A utility shelf, as indicated by the numeral 'I8 may be suspended by struts 19v from the frame. The frame is provided with keys 80 for holding the loops 28 spaced from the ratchets 39 when it is desired to drop the end section of the table top.

With the parts arranged in this manner the shaft 20 is rotated by the crank 2| to move the sleeves 38 and 52 toward the center for lowering the table or toward the ends of the frame for elevatingthe table. With the upper ends of the legs drawn toward the center of the table, as illustrated in Fig. 1, the legs are supported on the rollersof the casters whereby the table may readily be moved from one position to another and when the table is in use the upper ends of the legs are moved outwardly to positions, such asillustrated'in Fig. 2, wherein the table is supported on the shoes at the lower ends of the legs.

It will be understood that modications, within the scopeof the appended claims, may be' made in the design and arrangement of the parts without departing from the spirit of the invention.

What is claimed is:

In a vertically adjustable table, the combination which comprises a table top having hinged vertically adjustable end sections, a mounting frame, rectangular-shaped in plan upon which the table top is positioned,said mounting frame having side rails with longitudinally disposed slots therein and end rails connecting the ends of the side rails, transversely disposed rods having spacing sleeves thereon in said frame and positioned with ends thereof extended into the slots of the side rails of the frame, legs pivotally mounted on said rods and extended diagonally from said table top, shoes having frictional gripping pads on lower surfaces thereof pivotally mounted on the lower ends of the legs, braces positioned with upper ends pivotally connected, to the mounting frame at points spaced from the ends of the frame and with lower ends thereof pivotally connected to the legs at points intermediate of the ends of the legs, a longitudinally disposed rod rotatably mounted in the frame and having right and left hand threaded sections in the intermediate part thereof, sleeves threaded on the longitudinally disposed rod and integrally connected to the sleeves on the transversely disposed rods, a hand crank mounted on one end of the longitudinally disposed rod, and casters mounted by swivel elements on the legs and spaced from the frictional gripping slices, said casters being positioned whereby upon lowering the table top the casters Contact a surface upon which thetable is positioned and elevate the .shoes so that the table is adapted to be transported on said casters.

ReferencesCited in the file of this patent UNITED STATES PATENTS Number Name Date 862,791 Bawden Aug. 6, 1907 982,882 Schimmel Jan. 3l, 1911 1,626,091 Macklin Apr. 26, 1927 1,725,216 Seldomridge Aug. 2D, 1929 1,794,165 Gannaway Feb. 24, 1931 2,176,551 Solern Oct. 17, 1939 2,206,788 Meacham July 2, 1940 2,490,956 Freund Dec. 13, 1949 2,624,469 Cadwell et al Jan. 6, 1953 

